Improvement in malt-kilns



2 Sheets-Sheet L J. GECMEN.

. Malt Kiln.

N0. 5I,169. I I Patented Nov. 28, 1865.

N. PETERS. PhMn-Lnhngm har. wam'm ion, D4 C.

2 Sh t-Sh t2. J. GECMEN. BBS

Malt K ilm Patented Nov. 28, 1865.

M PETERS Phuta-Lilhogrlpher. Wallingon. D. By

UNITED STATES PATENT OFFICE.

JOSEPH GEUIIIEN, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN MALT-KILNS.

Specification fciming part of Leitrrs Patent No. 51,169, dated November 28, 1865.

To all whom it may concern:

Be it known that I, JOSEPH GEOMEN, of 011icago, in the county of Cook and State of Illinois, brewer, have invented a new and useful Improvement in Malt-Kilns and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and the letters and figures marked thereon, which form part of this specification.

The nature of my said invention consists in a novel arrangement of two vertical concentric perforated cylinders surrounded by a corresponding inclosure, between which said perforated cylinders the malt is placed, so that by introducing hot air within the inner cylinder, as hereinafter described, the same passes through the perforations therein and is diffused throughout the mass of malt, thoroughly dryin g the same in much less time than is required in malt-kilns of the ordinary construction.

My invention further consists in a novel arrangement, whereby the hot air may be shut off from the inner perforated cylinder and directed into the space included between the outer perforated cylinder and the imperforated inclosure aforesaid, or said hot air may at the sametime be admitted both into the inner cylinder and the outer space.

My invention further consists in a novel arran gement for admittingcold air upon and into the malt when desired, and also in a novel arrangement for discharging the malt from the kiln in the manner hereinafter more fully described and set forth.

To enable those skilled in the art to understand how to construct and use my invention, I will proceed to describe the same with particularity, making reference in so doing to the aforesaid drawings, in which- Figure 1 represents a vertical central section of my invention; Fig. 2, atop view thereof; Fig. 3, a bottom view of the same, and Fig. 4 a horizontal section at the line G B in Fig. 1.

Similar letters of reference indicate the same parts of my invention in the different figures.

(t represents the inner perforated cylinder, and Z) the outer perforated cylinder, g being the imperforated inclosure aforesaid.

The cylinders a b are constructed of any suitable sheet metal, and the inclosure g may be of brick or any other material, as preferred.

Theinner cylinder, a, has a close conical top or cover, 0, and the upper end of the outer cylinder, b, is provided with an inclined flange extending outward to the inclosure g, (marked 01.)

The lower end of a is provided with a similar flange extending outward to the foot of the cylinder I), (marked 1 as shown.

m represents an adjustable conical and circular diaphragm or plate fitting closely within the inner cylinder, and can be moved up and down therein by means of the rod m thereun to attached, as shown.

Within the inner cylinder, (1, there is an inverted close chamber, (marked 0,) up into which extends the hotair pipe f.

The wall of the cylinder b does not reach down to the outer edge of the perforated flange 0", being supported by the bars 8 thereupon, thus leaving an open space entirely around the bottom of said cylinder I).

0 represents acircular adjustable perforated casin g having a reciprocating vertical motion by means of the arms 1) attached thereto and the lever '10, by means of which said casing may be adjusted to close the aforesaid opening at the bottom of b, or to leave it open, as may be desired, for the reasons hereinafter described.

' i 6 represent dampers or valves, whereby the heat in the pipe j, which is introduced into said pipe from the furnace 9 through the pipe g, (shown in Figs. 1 and 4,) may be admitted into the pipes 76 h, to be discharged into the space between the outer cylinder, 1), and the inclosure g, j representing a similar valve for shutting the hot air out from the inner cylinder, a.

z 2 represent a series of valves through the bottom 70, for the purpose of admitting cold air when desired, said valves being readily opened and closed by means of the sliding knobs y, at tached thereto.

q represents a door or trap in the bottom, through which a person may enter for repairs when desired.

In the outer inclosure, g, there are suitable openings or doors, which may be closed, when desired, to facilitate the escape of the hot or cold air, (marked a.)

Having described the construction of my invention, I will now proceed to describe the operation of the same.

The malt is introduced at the top into the annular space 1, between the perforated cylindrical surfaces of a I), which may be filled full, the adjustable casing 0 being arranged so as to close the aforesaid opening around the bottom of the outer cylinder, 1). The cap on is adjusted in the inner cylinder at about the same height with the malt in the space I. The heat is then admitted through the pipe finto the inverted vessel 6, whence it passes, in the direction of the dark arrows, into the cylinder at, through the perforations therein, the malt, and the perforations in cylinder I), thoroughly drying the malt, whiclrrequires no stirring, as is the case in kilns of the ordinary construction.

If desired, by closing the valvej and opening the valves ii the heat may be introduced outside the exterior cylinder, 1), through the pipes h. By opening the valves 2 cold air may also be admitted to regulate the temperature of the kiln when desired.

As the malt becomes more and more thoroughly dried it shrinks in bulk and falls or settles down in the space I. As the malt settles the cap at should also be moved down, so as to prevent any of the heat from escaping through the cylinder a without passing through the malt.

When the malt is thoroughly dried and prepared the slide 0 is raised, when the entire contents of the kiln pass out at the aforesaid opening at the bottom of b, falling into the funnel-shaped receiver 1, whence it goes out by the spout it into the proper receptacle.

By this invention the malt is dried in about one-half of the time and with much less fuel than is required in the ordinary kilns, While at the same time the unhealthy laborofconstantly or frequently stirring the malt in process of drying is avoided.

This invention is equally applicable for drying grain.

Having described the construction and operation ot'myinvention, I will now specify what I claim and desire to secure by Letters Patent.

1. The combination and arrangement of the inner perforated cylinder, a the adjustable diaphragm m, and the perforated cylinder I), arranged substantially as specified and shown.

2. Providing the inner cylinder, to, with the adjustable conical diaphragm m, arranged and operating as specified and described.

3. The arrangement of the perforated annular slide 0 with the cylinder 1), substantially as and for the purposes specified.

4. The combination of the inverted close chamber 0 with the perforated cylinder to, ar-

ranged and operating substantially as and for the purposes specified and shown.

5. In combination with a malt-kiln, constructed substantially as described, the employment of the hot-air tubes f h, provided with valves ij, arranged as shown and specified, and for the purposes described.

Witnesses: JOS. GEGMEN.

W. E. MARRS, L. L. OoBURN. 

